CN109167238B - Special tool for debugging optical path of Q-switch laser and processing and using methods - Google Patents
Special tool for debugging optical path of Q-switch laser and processing and using methods Download PDFInfo
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- CN109167238B CN109167238B CN201711031945.XA CN201711031945A CN109167238B CN 109167238 B CN109167238 B CN 109167238B CN 201711031945 A CN201711031945 A CN 201711031945A CN 109167238 B CN109167238 B CN 109167238B
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- H01—ELECTRIC ELEMENTS
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Abstract
The invention relates to a special tool for debugging an optical path of a Q-switch laser and a processing and using method thereof.A transparent organic glass ruler is provided with a reference edge five, a reference edge six, a straight edge one, a straight edge two, a scribed line three and a scribed line four, wherein the reference edge five is a longitudinal edge on the right side of the transparent organic glass ruler, the reference edge six is a transverse edge of the transparent organic glass ruler, the straight edge one is a longitudinal edge on the left side of the transparent organic glass ruler, the straight edge two is positioned in the middle of the transparent organic glass ruler, the scribed line three is a circular ring on the lower part of the transparent organic glass ruler, the scribed line four is a cross line on the lower part of the transparent organic glass ruler, and the center of the scribed. The invention is convenient for the production and debugging of the electro-optical Q-switch solid laser, ensures that the laser is accurately and quickly installed in the initial reference, reduces the laser debugging difficulty and saves the debugging time.
Description
Technical Field
The invention relates to a special tool for debugging an optical path of a solid laser, in particular to a special tool for debugging an optical path of a Q-switch laser and a processing and using method thereof.
Background
Electro-optical Q-switched solid-state lasers have been widely used in various fields of industrial medicine. In particular xenon-pumped Nd: YAG electro-optical Q switch solid laser can generate giant peak laser pulse, has low cost, and is widely applied to the treatment of skin pigment.
In the prior art, in the debugging production process of the electro-optical Q-switch solid laser, the indicating laser, the pumping cavity and the polaroid for debugging are marked by a ruler, the installation angles of the pumping cavity and the polaroid are drawn and then installed, and the reference of the indicating laser optical axis for debugging is used.
Disclosure of Invention
The invention aims to provide a special tool for debugging an optical path of a Q-switch laser, which is convenient for the production and debugging of an electro-optical Q-switch solid laser, so that the laser is accurately and quickly installed in an initial reference, the laser debugging difficulty is reduced, and the debugging time is saved; the optical device can be quickly adjusted by quickly utilizing the axial refraction angle of the laser crystal rod, the angle of the polaroid and the axial space axial debugging line of the debugging indication laser in the debugging of the laser. The invention also provides a processing and using method of the special tool for debugging the optical path of the Q-switch laser.
In order to achieve the purpose, the invention has the following technical scheme:
the invention relates to a special tool for debugging an optical path of a Q-switch laser, which comprises a transparent organic glass ruler, wherein the transparent organic glass ruler is provided with a reference edge five, a reference edge six, a straight edge one, a straight edge two, a scribed line three and a scribed line four, the reference edge five is a longitudinal edge on the right side of the transparent organic glass ruler, the reference edge six is a transverse edge of the transparent organic glass ruler, the straight edge one is a longitudinal edge on the left side of the transparent organic glass ruler, the straight edge two is positioned in the middle of the transparent organic glass ruler, the scribed line three is a circular ring on the lower part of the transparent organic glass ruler, a through hole is arranged in the center of the circular ring, the scribed line four is a cross line on the:
the fifth reference edge and the sixth reference edge are mutually vertical and respectively correspond to the working laser axis reference of the laser;
the straight edge I is used for debugging the installation angle of the laser crystal bar; an included angle b between the first straight edge and the fifth reference edge is an acute angle;
the reticle III is used for debugging and mounting the angle of the polaroid, and the included angle a between the straight edge II and the reference edge is an acute angle;
reticle three and reticle four are used to indicate spatial axis tuning of the laser.
Wherein, the diameter of the through hole is 1 mm.
The invention relates to a processing and using method of a special tool for debugging an optical path of a Q-switch laser, which comprises the following steps:
1) and a first straight edge processing step for debugging the included angle between the central axis of the laser crystal rod and the incident or output laser:
processing the fifth included angle b between the first straight edge and the reference edge to be 1.64 degrees, and being suitable for debugging YAG laser crystal rods with two anti-reflection end faces and included angles of 88 degrees; the included angle of the inclined planes of the two end faces of the laser crystal rod is changed, and the included angle b is correspondingly changed according to the following formula to process a first straight edge:
n＝sin(r1)/sin(r2)；
r1 is the laser incidence angle r1 ═ b + (90- α);
r2 is the refraction angle in the laser crystal rod, r 2-90- α;
n is the refractive index of the laser crystal rod;
α is the refraction angle between the two end face inclined planes of the laser crystal bar and the axis of the laser crystal bar;
during debugging, the reference edge five of the transparent organic glass ruler is abutted against the laser side plate, the straight edge one is abutted against the light-gathering cavity, the central shaft of the laser crystal bar and incident or output laser keep a refraction included angle at the moment, and the light-gathering cavity is directly fixed;
2) and a second straight edge processing step for mounting the polaroid:
the straight edge 2 is a scribed line with a depth of about 0.25mm, and is processed at an angle of 56.6 ° with respect to the reference edge, and then the straight edge two and the reference edge six include angles of brewster:
33.4゜＝90゜-a＝90゜-56.6゜；
during debugging, the reference edge six is close to the laser side plate, and the polaroid is fixed when being installed in parallel by the straight edge two references, so that the minimum loss angle of the Brewster angle is kept between the laser optical axis and the polaroid;
3) the third reticle and the fourth reticle are processed:
the distance between the transverse line in the scribed line IV and the reference edge VI is the horizontal height of the laser axis, namely the distance between the laser axis and the base plate of the optical base, and the horizontal height of the laser axis is 30mm or 40mm and is adjusted according to the designed optical axis height of the laser; setting the distance between a longitudinal line in the scribed line four and the reference edge five, wherein the distance between the longitudinal line in the scribed line four and the reference edge five is the width of the vertical center position of the laser optical axis, and the position of the longitudinal line in the scribed line four is at the midpoint of the reference edge six;
the third scribed line ring is a through-center ring, the center of the third scribed line ring is a through hole with the diameter of 1mm, the crossing center of the transverse line and the longitudinal line of the fourth scribed line ring is superposed with the center of the third scribed line ring, and the third scribed line ring and the fourth scribed line ring are both processed into scribed lines with the depth of 0.25mm, so that the observation and the indication of laser projection are facilitated;
during debugging, the transparent organic glass ruler is used by standing, the reference edge six is used as the bottom and placed on a laser light base, the position of the vertical center line of the laser optical axis is found on the light base, the longitudinal line of the cross line of the reticle four and the vertical center line of the laser optical axis are overlapped and move horizontally, the positions of the indicating laser projected on the circular ring of the reticle three and the reticle four are observed, the central position, the pitch angle and the horizontal angle of the indicating laser are continuously adjusted until each point of the position of the laser optical axis vertical center line of the transparent organic glass ruler on the light base indicates that the laser projected is in the through hole of the reticle three centers, at the moment, the indicating laser and the working laser optical axis are overlapped to form a space reference guide light of the working laser optical axis, and all optical devices in the laser cavity are installed and debugged according to the position.
And the ring of the reticle III is provided with a plurality of rings.
Due to the adoption of the technical scheme, the invention has the advantages that:
1. the rapid installation of the laser crystal angle with the inclined surface at the inner end surface of the laser is realized.
2. And the rapid installation of the laser polaroid is realized.
3. The spatial debugging of the reference guide light of the laser optical axis is realized.
4. The tool is small in size, convenient to carry and convenient to debug and maintain the laser, and debugging time of the laser is greatly saved.
Drawings
FIG. 1-1 is a block diagram showing the working principle of embodiment 1 of the present invention;
fig. 1-2 are block diagrams of the working principle of embodiment 2 of the present invention;
FIGS. 1-3 are block diagrams of the working principle of embodiment 3 of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention.
In the figure, 1 is a straight edge; 2. a straight edge II; 3. scribing a third line; 4. scribing a line IV; 5. a reference edge five; 6. a reference edge six; 7. a transparent organic glass ruler; l1, distance between the horizontal line of the scribed line IV and the reference side six; l2, distance between the vertical line of the scribed line four and the reference edge five; a. the straight edge II forms an included angle with the reference edge V; b: the included angle between the first straight edge and the fifth reference edge; 8. indicating laser; 9. a total reflection lens; 10. a photovoltaic crystal; 11. a polarizing plate; 12. a light-gathering cavity; 13. a laser crystal rod; 14. an output lens; 15. a working laser optical axis; 16. indicating laser spots; 17. the laser optical axis is vertical to the center line and coincident points are debugged; 18. a slope of a laser crystal rod; phi 1, a through hole; Φ 4, second circle; phi 10, a third circle, phi 16, a fourth circle; Φ 22, fifth circle.
Detailed Description
Referring to a block diagram of working principles of fig. 1-3 and a schematic diagram of fig. 2, the special tool for debugging an optical path of a Q-switch laser comprises a transparent organic glass ruler, wherein a reference edge five, a reference edge six, a straight edge one, a straight edge two, a scribed line three and a scribed line four are arranged on the transparent organic glass ruler, the reference edge five is a longitudinal edge on the right side of the transparent organic glass ruler, the reference edge six is a transverse edge of the transparent organic glass ruler, the straight edge one is a longitudinal edge on the left side of the transparent organic glass ruler, the straight edge two is positioned in the middle of the transparent organic glass ruler, the scribed line three is a circular ring on the lower part of the transparent organic glass ruler, a through hole is arranged in the center of the circular ring, the scribed line four is an organic glass:
the fifth reference edge and the sixth reference edge are mutually vertical and respectively correspond to the working laser axis reference of the laser;
the straight edge I is used for debugging the installation angle of the laser crystal bar; an included angle b between the first straight edge and the fifth reference edge is an acute angle;
the reticle III is used for debugging and mounting the angle of the polaroid, and the included angle a between the straight edge II and the reference edge is an acute angle;
reticle three and reticle four are used to indicate spatial axis tuning of the laser.
Wherein, the diameter of the through hole is 1 mm.
The special tool for debugging the optical path of the electro-optical Q-switch solid laser is made of a transparent organic glass plate with the thickness of 5mm, and is convenient for observing the installation angle of a device and indicating laser projection during debugging.
The invention relates to a processing and using method of a special tool for debugging an optical path of a Q-switch laser, which comprises the following steps:
1) and a first straight edge processing step for debugging the included angle between the central axis of the laser crystal rod and the incident or output laser:
processing the fifth included angle b between the first straight edge and the reference edge to be 1.64 degrees, and being suitable for debugging YAG laser crystal rods with two anti-reflection end faces and included angles of 88 degrees; the included angle of the inclined planes of the two end faces of the laser crystal rod is changed, and the included angle b is correspondingly changed according to the following formula to process a first straight edge:
n＝sin(r1)/sin(r2)；
r1 is the laser incidence angle r1 ═ b + (90- α);
r2 is the refraction angle in the laser crystal rod, r 2-90- α;
n is the refractive index of the laser crystal rod;
α is the refraction angle between the two end face inclined planes of the laser crystal bar and the axis of the laser crystal bar;
during debugging, the reference edge five of the transparent organic glass ruler is abutted against the laser side plate, the straight edge one is abutted against the light-gathering cavity, the central shaft of the laser crystal bar and incident or output laser keep a refraction included angle at the moment, and the light-gathering cavity is directly fixed;
2) and a second straight edge processing step for mounting the polaroid:
the straight edge 2 is a scribed line with a depth of about 0.25mm, and is processed at an angle of 56.6 ° with respect to the reference edge, and then the straight edge two and the reference edge six include angles of brewster:
33.4゜＝90゜-a＝90゜-56.6゜；
during debugging, the reference edge six is close to the laser side plate, and the polaroid is fixed when being installed in parallel by the straight edge two references, so that the minimum loss angle of the Brewster angle is kept between the laser optical axis and the polaroid;
3) the third reticle and the fourth reticle are processed:
the distance between the transverse line in the scribed line IV and the reference edge VI is the horizontal height of the laser axis, namely the distance between the laser axis and the base plate of the optical base, and the horizontal height of the laser axis is 30mm or 40mm and is adjusted according to the designed optical axis height of the laser; setting the distance between a longitudinal line in the scribed line four and the reference edge five, wherein the distance between the longitudinal line in the scribed line four and the reference edge five is the width of the vertical center position of the laser optical axis, and the position of the longitudinal line in the scribed line four is at the midpoint of the reference edge six;
the third scribed line ring is a through-center ring, the center of the third scribed line ring is a through hole with the diameter of 1mm, the crossing center of the transverse line and the longitudinal line of the fourth scribed line ring is superposed with the center of the third scribed line ring, and the third scribed line ring and the fourth scribed line ring are both processed into scribed lines with the depth of 0.25mm and the width of 0.5mm, so that the indicated laser projection can be observed conveniently;
during debugging, the transparent organic glass ruler is used by standing, the reference edge six is used as the bottom and placed on a laser light base, the position of the vertical center line of the laser optical axis is found on the light base, the longitudinal line of the cross line of the reticle four and the vertical center line of the laser optical axis are overlapped and move horizontally, the positions of the indicating laser projected on the circular ring of the reticle three and the reticle four are observed, the central position, the pitch angle and the horizontal angle of the indicating laser are continuously adjusted until each point of the position of the laser optical axis vertical center line of the transparent organic glass ruler on the light base indicates that the laser projected is in the through hole of the reticle three centers, at the moment, the indicating laser and the working laser optical axis are overlapped to form a space reference guide light of the working laser optical axis, and all optical devices in the laser cavity are installed and debugged according to the position.
Referring to fig. 1-1, the invention relates to a light-gathering cavity provided with a laser crystal bar with two end faces, and the invention uses a straight edge I of a transparent organic glass ruler and a reference edge five included angles to debug the included angle between the central axis of the laser crystal bar with two end faces being inclined planes (reflection prevention) and incident or output laser in a laser.
Referring to fig. 1-2, the invention uses the included angle between the second straight edge and the sixth reference edge of the transparent organic glass ruler to debug the optimum angle of the brewster angle between the polarizer and the laser optical axis in the laser.
Referring to fig. 1-3, the transparent organic glass ruler is used by standing with the reference side six as the bottom, and the debugging of the position of the indicated laser spatial axis is guided according to the indicated laser spot projection point by using the circular ring of the scribed line three and the cross line of the scribed line four and combining the laser optical axis reference line of the optical base.
The ring of the reticle III comprises a through hole phi 1 in the center of the ring, the diameter of the through hole phi 1 is 1mm, the diameter of the second circle phi 4 is 4mm, the diameter of the third circle phi 10 is 10mm, the diameter of the fourth circle phi 16 is 16mm, the diameter of the fifth circle phi 22 is 22 mm. The invention relates to the depth and width of a reticle III and a reticle IV
The special debugging tool can be suitable for optical path debugging in the production of electro-optical Q switch solid laser with various wavelengths, and can also be suitable for optical path debugging of other solid lasers.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.
Claims (3)
1. The utility model provides a Q switch laser light path debugging specialized tool, includes transparent organic glass chi, its characterized in that: be equipped with reference edge five, reference edge six, straight flange one, straight flange two, groove three, groove four on the transparent organic glass chi, reference edge five is the vertical limit on transparent organic glass chi right side, and reference edge six is the horizontal limit of transparent organic glass chi, and straight flange one is the left vertical limit of transparent organic glass chi, and straight flange two is located transparent organic glass chi middle part, and groove three is the ring of transparent organic glass chi lower part the ring center is equipped with the through-hole, and groove four is the cross of transparent organic glass chi lower part, and the center of groove four overlaps with the center of groove three, wherein:
the fifth reference edge and the sixth reference edge are mutually vertical and respectively correspond to the working laser axis reference of the laser;
the straight edge I is used for debugging the installation angle of the laser crystal bar; an included angle b between the first straight edge and the fifth reference edge is an acute angle;
the reticle III is used for debugging and mounting the angle of the polaroid, and the included angle a between the straight edge II and the reference edge is an acute angle;
reticle three and reticle four are used to indicate spatial axis tuning of the laser.
2. The special tool for optical path debugging of Q-switched laser according to claim 1, wherein: the diameter of the through hole is 1 mm.
3. A processing and using method of a special tool for debugging an optical path of a Q-switch laser is characterized by comprising the following steps:
1) and a first straight edge processing step for debugging the included angle between the central axis of the laser crystal rod and the incident or output laser:
processing the fifth included angle b between the first straight edge and the reference edge to be 1.64 degrees, and being suitable for debugging YAG laser crystal rods with two anti-reflection end faces and included angles of 88 degrees; the included angle of the inclined planes of the two end faces of the laser crystal rod is changed, and the included angle b is correspondingly changed according to the following formula to process a first straight edge:
n＝sin(r1)/sin(r2)；
r1 is the laser incidence angle r1 ═ b + (90- α);
r2 is the refraction angle in the laser crystal rod, r 2-90- α;
n is the refractive index of the laser crystal;
α is the refraction angle between the two end face inclined planes of the crystal rod and the axis;
during debugging, the reference edge five of the special debugging tool is close to the side plate of the laser, the straight edge one is close to the light-gathering cavity, the central axis of the laser crystal bar and incident or output laser keep a refraction included angle at the moment, and the light-gathering cavity is directly fixed;
2) and a second straight edge processing step for mounting the polaroid:
the second straight edge is a 0.25mm deep scribed line, and a fifth included angle a with the reference edge is processed to 56.6 degrees, so that a sixth included angle between the second straight edge and the reference edge is a brewster angle:
33.4゜＝90゜-a＝90゜-56.6゜；
during debugging, the reference edge six is close to the laser side plate, and the polaroid is fixed when being installed in parallel by the straight edge two references, so that the minimum loss angle of the Brewster angle is kept between the laser optical axis and the polaroid;
3) the third reticle and the fourth reticle are processed:
the distance between the transverse line in the scribed line IV and the reference edge VI is the horizontal height of the laser optical axis, and the height of the laser optical axis is adjusted by 30mm or 40mm according to the design of the laser; setting the distance between a longitudinal line in the scribed line four and the reference edge five, wherein the distance between the longitudinal line in the scribed line four and the reference edge five is the width of the vertical center position of the laser optical axis, and the position of the longitudinal line in the scribed line four is at the midpoint of the reference edge six;
the third scribed line ring is a through-center ring, the center of the third scribed line ring is a through hole with the diameter of 1mm, the crossing center of the transverse line and the longitudinal line of the fourth scribed line ring is superposed with the center of the third scribed line ring, and the third scribed line ring and the fourth scribed line ring are both processed into scribed lines with the depth of 0.25mm, so that the observation and the indication of laser projection are facilitated;
during debugging, the special debugging tool is used vertically, the special debugging tool is placed on a laser optical base with the reference side six as the bottom, the position of the vertical center line of the laser optical axis is found on the optical base, the longitudinal line of the cross line of the reticle four and the vertical center line of the laser optical axis are overlapped and move horizontally, the positions of the indicating laser projected on the circular ring of the reticle three and the reticle four are observed, the central position, the pitch angle and the horizontal angle of the indicating laser are continuously adjusted until each point of the position of the laser optical axis vertical center line of the special debugging tool on the optical base indicates that the laser projected is in the through hole of the reticle three centers, at the moment, the indicating laser and the working laser optical axis are overlapped to form a space reference guide light of the working laser optical axis, and all optical devices in the laser cavity are installed and debugged according to the position.
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| CN87202661U (en) * | 1987-02-26 | 1987-11-04 | 连超勇 | Multipurpose drawing rule |
| CN202661043U (en) * | 2012-05-29 | 2013-01-09 | 广新海事重工股份有限公司 | Round hole center positioning device |
| CN103094815A (en) * | 2013-01-17 | 2013-05-08 | 中国科学院上海光学精密机械研究所 | Auxiliary device for light path standard and angular adjustment and use method thereof |
| US9116026B1 (en) * | 2012-02-10 | 2015-08-25 | Paul Albert Parker | Measuring device |
| CN204604309U (en) * | 2015-05-13 | 2015-09-02 | 浙江佳力科技股份有限公司 | Quick positioning marking device |
| CN105278115A (en) * | 2015-08-05 | 2016-01-27 | 中国科学院光电研究院 | Optical path debugging device and system of laser |
-
2017
- 2017-10-30 CN CN201711031945.XA patent/CN109167238B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202661U (en) * | 1987-02-26 | 1987-11-04 | 连超勇 | Multipurpose drawing rule |
| US9116026B1 (en) * | 2012-02-10 | 2015-08-25 | Paul Albert Parker | Measuring device |
| CN202661043U (en) * | 2012-05-29 | 2013-01-09 | 广新海事重工股份有限公司 | Round hole center positioning device |
| CN103094815A (en) * | 2013-01-17 | 2013-05-08 | 中国科学院上海光学精密机械研究所 | Auxiliary device for light path standard and angular adjustment and use method thereof |
| CN204604309U (en) * | 2015-05-13 | 2015-09-02 | 浙江佳力科技股份有限公司 | Quick positioning marking device |
| CN105278115A (en) * | 2015-08-05 | 2016-01-27 | 中国科学院光电研究院 | Optical path debugging device and system of laser |
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